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im trying to make new trees for my mod but dont know where to start could someone help me please? im just looking to make trees like the apple trees but with different fruit and maybe different wood types.

You need to find out if you want to generate new trees or modify existing.

You could take a look at other mods: moretrees, tiny trees, the trees from farming plus and more (at least there must also be somewhere a mod making fruittrees (I can't find the link)).

When using existing trees ABM-ing some leaves into fruit would be sufficient.

Thanks for the help, i think i would just like to generate new trees

durtective6 wrote:Thanks for the help, i think i would just like to generate new trees

You could try to use the moretrees code with the L-system. There's info about it in minetest/doc/lua_api.txt
and here https://forum.minetest.net/viewtopic.php?id=4766

or

Use the code from farming plus (under init.lua and cocoa.lua/bananas.lua)

or

An old one I sometimes used, conifers:
https://forum.minetest.net/viewtopic.php?id=1453



Good luck!

k thanks for the help

gak! - if you make the example treedef in the lua.doc.txt you get this monster - i just wanted a pear tree like the default apple trees!!!


pear_tree={
axiom="FFFFFAFFBF",
rules_a="[&&&FFFFF&&FFFF][&&&++++FFFFF&&FFFF][&&&----FFFFF&&FFFF]",
rules_b="[&&&++FFFFF&&FFFF][&&&--FFFFF&&FFFF][&&&------FFFFF&&FFFF]",
trunk="mylovelytree:peartrunk",
leaves="mylovelytree:pearleaves",
angle=30,
iterations=2,
random_level=0,
trunk_type="single",
thin_branches=true,
fruit_chance=10,
fruit="mylovelytree:pearfruit"
}
OUCH!!!

anybody have axiom/treedef for the regular default-size tree?

leetelate wrote:anybody have axiom/treedef for the regular default-size tree?

The default tree is hardcoded, not created by axioms for the l-system. Look at src/treegen.cpp
I suggest you to use schematics, though.

PilzAdam wrote:

leetelate wrote:anybody have axiom/treedef for the regular default-size tree?

The default tree is hardcoded, not created by axioms for the l-system. Look at src/treegen.cpp
I suggest you to use schematics, though.

thanks - i'll take a crack at coding a L-treegen for it just for the sheer pleasure or working it out!

done and dusted



pear_tree={
axiom="TTTATBfA",
rules_a = "[&&G^G-f-ff-fc-fff-fdf-fcff-ffcf-fffdf]",
rules_b = "[&&G^G-f-fc-ff-fdf-fff-ffdf-fdff-cfdff]",
rules_c = "G",
rules_d = "R",
trunk="mylovelytree:peartrunk",
leaves="mylovelytree:pearleaves",
angle=90,
fruit="mylovelytree:pearfruit"
}

even used the random c & d, but not the trunks and branches and random iterations since there is no room for that in the small tree

the cpp ones are way faster, even generating the random cpp way in lua is faster - L-system makes nice trees but sadly i'll prolly never use them

it was fun to make the treegen though - working out the upside-down turning turtle dragging the tail to draw the nodes

how would i go about coding fruit and saplings?